Bessey BPC-H34 Pipe clamping set, BE102507 - Suitable for steel pipes DN 20/R3/4" or DN 15/R1/2", Outer diameter 26.9 mm or 21.3 mm, Infinitely-adjustable clamping width. HÓ shape foot assembly stabilizes clamp in two dimensions giving dual-axis stability. Extra high base provides industry leading clearance from the work surface. Cast jaws for durability, smooth action spindle.